Allow users to tag appointments with multiple keywords.

I would prefer to TAG each of my calendar items (appointments) rather than assigning them to only one calendar.

Let users create their own custom tags.

Let users save logical tag combinations (using "and" and "or" operators) into named calendars. For example:
- "Main Family Cal" is assigned the tags: (Family AND HighPriority).
- "Fun Family Cal" is assigned the tags: (Vacation OR Fun OR party).

Put a TAG CLOUD on the left panel instead of a vertical list of calendars. (http://en.wikipedia.org/wiki/Tag_cloud)

Let users click to highlight (toggle on/off) multiple tags in the tag cloud in order to view the matching appointments on their month/day/list calendar display.

Allow users to set colors for named calendars (tag combinations), as is currently available in the My Calendars section...because that's REALLY HELPFUL!

Thank you, Google! I love you!